
LeetCode
Codility
CodeSignal
iMocha
Codewars
HackerEarth
TestGorilla
HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.

Blue Iris
ZoneMinder
motionEyeOS
Securityspy
Yawcam
Contacam
Kerberos.io
iSpy is software that allows the user to view and control video surveillance cameras. The software began development in 2007 and now has over 2 million users around the world, according to the software's website. Read more about iSpy.

Which is more popular?
Based on our record, HackerRank should be more popular than iSpy. It has been mentioned 67 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | hackerrank.com | ispyconnect.com |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
HackerRank is recommended for students, individual learners, and job seekers looking to improve their coding skills, as well as for companies seeking an efficient way to evaluate candidates' technical abilities during the hiring process.
Overall verdict
Why this product is good
Recommended for
iSpy is recommended for tech-savvy users who want a customizable and affordable solution for video surveillance. It is suitable for small business owners, DIY enthusiasts, and those who are interested in an open-source solution that can be tailored to their specific needs. It is less ideal for those seeking a plug-and-play, all-in-one system with customer support.
Walkthroughs and reviews on video.
Is HackerRank A Good Idea?
More videos
IPSY SEPTEMBER 2019| ISPY SEPTEMBER REVIEW| IPSY
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using HackerRank and iSpy. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


What are LeetCode and LeetCode alternatives good for?LeetCode💡Interested in leveling up your career? Apply to the Formation Fellowship...
HackerRank’s challenges cover a wide range of topics and difficulty levels, allowing developers to enhance their problem-solving skills and learn new algorithms and data structures. The competitive nature of...
HackerRank offers a wide array of challenges across various domains such as algorithms, mathematics, SQL, and functional programming. Its interface is user-friendly, and the platform provides detailed feedback on...
Another complete solution that is a favorite of many users is iSpy. This project started as an open-source application intended to provide an alternative to expensive surveillance systems. Later on, the team started...
However, it is not the only software in the category that gives excellent performance. Among the more popular Blue Iris alternatives are ZoneMinder, Shinobi, YawCam, and others. However, iSpy is the best Blue Iris...
Recommendations tracked on public social media and blogs since March 2021.


This way, you transfer what you already know (problem-solving) but only change the syntax. Platforms like Hackerrank are also great to solve the same problem in different languages and learn from other people’s solutions. - Source: dev.to / about 1 year ago
Firstly, solve some common data structure problems with it. Implement some data structures like arrays, linked lists, stacks, queues, etc. You can check common problems on LeetCode, Hackerank or some other resources. - Source: dev.to / over 2 years ago
I don't have a consecutive internet connection and I can't keep up learning process so I started practicing in hackerrank.com I have started some challenges in python and c++ there. Thus I have no internet connection so I cannot practice... Source: almost 3 years ago
I can't connect my local server to ispyconnect.com or the app. Serial changed for public consumption. Source: over 3 years ago
No, it has mjpeg endpoints and a command interface but not a website, the website for it is on ispyconnect.com. Source: over 3 years ago
I've reproduced these steps but still can't get it to work. I just want to add that I can access it from ispyconnect.com but no other users can. Source: over 3 years ago
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Practice and level up your development skills and prepare for technical interviews.
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Codility provides a SaaS platform with advanced validation, security and protection features to evaluate the skills of software engineers.
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ZoneMinder is a free and open-source piece of security software that can be used at home or in your business. The software puts you in control of all of your data, and it is exceptionally easy to setup. Read more about ZoneMinder.
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CodeSignal is the leading assessment platform for technical hiring.
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A Video Surveillance OS For Single-board Computers
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